Bdim7 chord on piano

B Diminished Seventh. Notes: B, D, F and Ab.

Bdim7 piano chord, root positionBC4DFC5Ab
Root position. Tap any key to hear it.

How to play Bdim7

  1. Find B just below middle C. That is the root.
  2. Add D, F and Ab above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.

Notes

Broot
Db3 · minor third
Fb5 · diminished fifth
Abbb7 · diminished seventh

Bdim7 inversions

An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.

Bdim7 Root positionBC4DFC5Ab

Root position

B · D · F · Ab
Bdim7 1st inversionC4DFBC5Ab

1st inversion

D · F · Ab · B
Bdim7 2nd inversionC4FBC5DAb

2nd inversion

F · Ab · B · D
Bdim7 3rd inversionC4BC5DFAb

3rd inversion

Ab · B · D · F

Notes and theory

Broot
Db3 · minor third
Fb5 · diminished fifth
Abbb7 · diminished seventh

The diminished seventh is built entirely from minor thirds, so it repeats every three frets. It is a dramatic passing chord. The formula is 1 b3 b5 bb7, and you will also see it written as B°7 and Bo7.

More B chords

All B piano chords

diminished seventh chords in every key

Questions

What notes are in the Bdim7 chord?

Bdim7 (B diminished seventh) is made of four notes: B (root), D (minor third), F (diminished fifth) and Ab (diminished seventh).

How do you play Bdim7 on piano?

Play B, D, F and Ab together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.

What are the inversions of Bdim7?

Root position: B D F Ab. 1st inversion: D F Ab B. 2nd inversion: F Ab B D. 3rd inversion: Ab B D F.

What does a diminished seventh chord sound like?

The diminished seventh is built entirely from minor thirds, so it repeats every three frets. It is a dramatic passing chord.